This year’s Super Bowl features a laser light show on the Caesars Superdome ... head to WFRV Local 5 - Green Bay, Appleton.

The process is only about 48% efficient, meaning that IR leaks out along with the green light. The better quality DPSS laser pointers include a quality IR filter to remove it; cheaper ones often ...

In Optica, researchers describe how they used a ruby crystal and specific laser wavelengths to show that a laser ... a dark area where the green laser blocked the blue light.

Thanks to the reader who provided heads-up on this - a laser light show from the Space Needle on Friday night, likely visible here across the bay. Here's the alert sent by Needle management: On Friday ...